N,N'-羰基二咪唑

toluene-4-sulfonic acid (S)-3-[(5-chloro-thiophene-2-carbonyl)-amino]-2-[4-(3-oxo-morpholin-4-yl)-phenylcarbamoyloxy]-propyl ester

4-{4-[5-aminomethyI-2-oxo-1,3-oxazolidine-3-yl]-phenyl}-morphoIine-3-one acetate